This is so in line with what I looked at this morning with my kids. Each morning we alternate an OT scripture and a NT scripture, but on Fridays we turn to a Christian biography instead. Our biography this term is of Gladys Aylward. As I was reading these words from her this morning, I had to pause, shed a few tears, and carry on (which my daughter always finds amusing!):
On Monday, the 24th, a man who could speak a little English entered my [train] compartment. We managed to carry on a rather difficult conversation, but it was good to have someone to talk to. We asked each other many questions and, through him, the conductor was able to tell me that the trains were not running to Harbin, so I would probably be held up at the border. This, of course, gave me a very anxious night. What would I do if I was stranded here, thousands of miles from anyone who could help me? Then I thought, I am failing my God. He isn’t thousands of miles away. He is right beside me. Why should I worry about my journey when God is helping me all the time? Even if I could have done so, I would not have turned back, for I believed God was going to reveal Himself in a wonderful way.
A couple of pages later she continues about her wrestle of faith and fear:
It was bitterly cold. The wind howled around me, bringing with it fine, powdered snow. I sat on my luggage - miserable, cold and hungry - somewhere near the Manchurian border with not a soul in sight. I thought I would freeze to death, and for the first time real doubts came to my mind.
“Oh God, is it worth it?” I cried.
Like a flash came the answer: “Be not afraid, remember I am the Lord”. (Gladys Aylward- The Little Woman, by Gladys Aylward and Christine Hunter)
The story continues along the same lines, each time she chooses faith in God over fears of circumstances, and God strengthens her heart at each step. Exactly as @lakshmi said, we need to nurture our faith in God and habits of turning to him in trouble.
Obviously I am going to cry my way through this whole book!